... 22kg Standard Steel Rail Light steel rail, heavy steel rail, crane steel rail 1). Steel rail type: Light steel rail, heavy steel rail, crane steel rail 2). Steel rail scope: Light steel rail: 5kg ... m, 18kg/m, 22kg/m, 24kg/m, 30kg/m. Heavry steel rail: 38kg/m, 43kg/m, 50kg/m, 60kg/m. ... Crane steel rail: QU70, QU80, QU100, QU120. 3). Steel rail material: Q235, 55Q, 71MnK, 45Mnk, ...